Lord Rayleigh (John William Strutt)
Born: 12 November 1842, Langford Grove, Maldon, Essex, United Kingdom
Died: 30 June 1919, United Kingdom
Affiliation at the time of the award: Royal Institution of Great Britain, London, United Kingdom
Prize motivation: "for his investigations of the densities of the most important gases and for his discovery of argon in connection with these studies"
Field: gas physics, molecular physics
Prize share: 1/1